Pipe-boiler.



Nu. 656,I2|. Patented Aug. I4, |900. J. KAINE.

PIPE BolLlER. (Application led Max'. 1 6, 1900.) (No Model.) 2 Sheets-Sheet I.

2 Sheets-Sheet 2.

(No Model.)

. MNMIW mmlllflllh IIIII Nrrnn STATES! ATENT Frio.

JAMES KAINE, OF NEW YORK, N. Y., ASSIGNOR OF TWO-THIRDS TO CHARLES HOWARD BOYER AND FRANK WOODRUFF BOYER, OF SAME PLACE.

PIPE-BolLER.

SPECIFICATION forming part of Letters Patent No. 656,121, dated August 14, 1900.

Application filed March 16 1900. Serial No. 8,964. (No modell)l To LZZ whom it may conoci/'71,.'

Be it known that I, JAMES KAINE, a citizen vof the United States, residing at New York, (Brooklyn,) in the county of Kings and State of New York, have invented new and useful Improvements in PipelBoilers, of which the following is a specification.

This invention relates'to pipe-boilers, and has special relation' to certain new and useful improvements in the boiler forming the subject-matter of Letters Patent No. 532,071, granted to me January 8, 1895. In said pat? ent I have shown, in connection with a horizontal steam-drum, two horizontal legs, a rear transverse leg connecting the ends of said legs, and a series of pipes arranged at each side of the combustion-chamber, butalter-l nately in opposite directions over the horizontal legs and communicating with the latter and with the steam-drumk In practice I iind that the provision of a continuous line of pipe at the side of the combustion-chamber tends to produce a sluggish circulation of water through said pipes, so that steam is liable to form therein and the pipes become dry and burn out. Furthermore, .should it become necessary to repair any one of these pipes the circulation through the entire line of pipe must be stopped, thus materially reducing the capacity of the boiler to 'generate steam.

It is the main object of the present invention to overcome this objection and to provide a series of pipes inclosing the combustion-chamber at the sides and top, each of said pipes having a circulation' independent of the others, whereby any one of said pipes may be removed for repairs without in any manner interfering with the circulation of the water through the other pipes.'

A further object of the invention relates to a novel arrangement of the pipes .for securing exposure Yto the heat of the 'combustion-v chamber of aV large'amount ofA heat-surface,

whereby steam will be generated with great rapidity and in large volumes.

To these ends the invention consists of the, features of vconstruction and the combination* or arrangement of parts hereinafter described,

and particularly pointed out in the claims.

I have illustrated my invention in the accompanying drawings, in whichf Figure l is a front perspective View. Fig.

l.2 is a rear elevation, and Fig. 3 is a trans- Verse sectional view taken on the line 3 3 of Fig. 2.

Thevreference-numeral 1 in said drawings indicates the steam-drum, which is arranged at the upper front of the boiler and extends from side tov side thereof. Communicating with said drum at or near its ends are two 6o vertical or nearly-vertical water-columns 2, which open into the lower side of the drum and extend thence downward to the front ends of two horizontal or nearly-horizontal water-legs 3, having about the same diameter as the water-columns. At their rear ends the water-legs 3 communicate with the ends of a third water-leg 4, which extends trans- Versely from side to side of the rear-end of the combustion-chamber. Communicating 7o with the transverse or back legi 4 are two alternating series of vertical or nearly-vertical pipes 5 6, which rise from the upper side of the leg to a point near the horizontal plane of the water-drum 1. At their upper ends said pipes are coupled to a series of nearlyhorizontal pipes 7 of somewhat less diameter, the latter series extending forward to the middle of the combustion-chamber or thereabout, where their ends are coupled to a dou- 8o ble series of short vertical or nearly-vertical pipes 8 9, the former series being considerably the shorter. The series 8 are coupled at their upper ends to the rearward ends of al series of horizontal or nearly-horizontal manifolds 10, arranged substantially in the same horizontal plane and extending forward to the steam-drum 1, which they enter upon the rear sideof said drum. The pipes 9 of the other series rise to a higher point, and 9o their ends are coupled to the rearward ends of a series of manifolds 12, which also extend forwardto the steam-'d rum, entering the same about midway between the top and the rearward side of said drum. The two series of manifolds are thus alternated in position, such arrangement beingmade necessary by the in'crease'ddiameter 'of the manifolds relatively to the two series of pipes 8 9.

Each of the pipes 5 6 is entered upon its loo front and from a point immediately below the coupling at the upper end by a closely-arranged series of pipes 13, of comparatively small diameter. These pipes are arranged in the saine vertical plane in each group, and each series extends down to the middle point, or thereabout, of the pipes 5 6. The members in each group or series are arranged at narrow intervals of separation in order to include as many pipes in each series as possible consistent with the proper circulation of the products of combustion. The pipes of each series extend forward until beneath the manifold 10 or 12. They are then bent .into a vertical position and enter the lower side of the manifolds. Each of the series of pipes 13 is known as a flat The arrangement of the drum, legs, pipes, and manifolds above brieflyindicated is the same as in my patent above noted and need not be described more in detail.

As above stated, I dispense with the coil of pipes at each side of the combustion-chamber, which pipes formed a feature of my patented construction, and in lieu thereof employ the arrangement of pipes which will now be described.

Tapped into the upper side of each of the side legs 3 is a series of upright pipes 14, each of which at its upper end is connected to a horizontal pipe 15. Each pipe 14 on one side of the boiler is directly opposite a corresponding pipe 14 on the opposite side of the boiler, and the horizontal pipes 15 from corresponding pipes 14 have their inner ends secured in a three-way coupling 16. The pipes 14 extend in vertical series from end to end of the legs 3 within the boiler-casing, and thereby inclose opposite sides of the combustionchamber. The pipes 15 extend across the top of the combustion-chamber from side to side thereof, while by the construction described a series of couplings 16 will be located centrally of the combustion-chamber-that is, they will have a relative position midway between the ends of the drum 1 and extend in a straight line from the front to the rear of the combustion-chamber. A short pipe 17 connects each coupling 16 with a horizontal manifold 18, which extends in a line parallel with and above the line of couplings 16. The manifold 18 at its forward end is curved upwardly and communicates with the drum 1 through the bottom thereof and about midway between the ends of said drum, as indicated at 19. At its rear end the manifold 18 is connected to the upper end of an upright pipe or uptake 20, which at its lower end communicates with the back leg 4. The manifold 18 is of such increased diameter or size relative to the pipes 15 as to enable it to accommodate the outflow from all of said pipes, as will be understood. The upright or uptake pipe 20 is of the same size or diameter as the uptakes 5 6. In order to provide space for the manifold 18 and uptake 20, I remove one or more of the flats 13, as clearly shown in Fig. 2.

In the present construction it will bc seen that in addition to the circulation through the flats 13 at the rear of the boiler' I provide for a direct circulation from the side legs 3 through the pipes 14 and 15 and manifold 18 to the steam-drum and for a like circulation from the back leg 4 through the pipe 20. Furthermore, the circulation through each pipesection 14 15 is independentof and distinct from the circulation through the other pipesections, so that any one of said pipe-sections may be removed for repairs without in any manner interfering with the operation of the others. The pipes 15, manifold 18, and flats 13, being exposed to the direct heat from the combustion-chamber, will insure the rapid generation of steam, while the large number of pipes of comparatively-small diameter eX- posed to the heat will cause the steam to be generated in large volumes or quantities. The uptake-pipes 5, 6, and 14, being located at the sides of the combustion-chamber, will not be subjected to such intense heat, and this fact, taken in connection with the fact that the steam-drum 1 and water-colums 2 are located outside of the boiler-casing, while the legs 3 and 4 are inside the casing, but beneath the grate of the combustion-chamber, insures a rapid and positive circulation of the water through all the pipes, as explained in my patent referred to. Further, by connecting the rear ends of the manifolds with the tops of the uptake-pipes I do away with dead ends and insure a complete circulation of water throughout the boiler.

Having thus fully described my invention, what I claim as new is- 1. In a pipe-boiler, in combination with the steam-drum, water-columns and side waterlegs, a horizontal manifold located centrally of and communicating with said drum, a series of vertical pipes communicating with each of said legs at intervals throughout its length, a series of three-way couplings, a series of horizontal pipes extending inward from the upper ends of said Vertical pipes and into opposite sides of said couplings and a series of shortvertical pipes connecting said couplings with said manifold, substantially as described.

2. In a pi pe-bciler, in combination with the steam-drum, water-columns and side and back water-legs, a horizontal manifold located centrally of and communicating at its forward end with said drum, a vertical uptake connecting the rear end of said manifold with the back water-leg, a series of vertical pipes communicating with each of said side waterlegs at intervals throughout its length, and a seriesfof horizontal pipes connecting the upper ends of said vertical pipes, said horizontal pipes communicatingcentrally at their length with said manifold, substantially as described.

3. In a pipe-boiler, in combination with the steam-drum,watercolumns and side and back water-legs, a series of horizontal manifolds communicating at one cnd with the rcarsido IOO of said drum, a series of Vertical uptakes communicating at their lower ends With the back Water-legs and at their upper ends With the other, or rearward ends of said manifolds, a series of ats arranged as described and connecting said manifolds and said nptakes, a horizontal manifold located centrally of and communicating at its forward end With said drum through the bottom thereof, a vertical uptake connecting the rear end of said manifold with the back Water-leg, a series of'vertical pipes communicating with each of said side Water-legs at intervals throughout its length, and a series of horizontalpipes connecting the upper ends of said vertical pipes, said horizontal pipes communicating centrally of their length with said manifold, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribingwitzo UGSSGS.

JAMES KAINE. [L s@ Witnesses:

E. M. MACLELLAN, EDWIN F. FERRY. 

